High resolution study of the absorption spectrum of the first positive system of N2

Abstract

The first positive system of N2, B3Πg – A3Σu+, has been obtained in absorption by the flash discharge technique. From a high resolution spectrum, a rotational analysis of the 12–8, 13–9, 14–10, 15–11, 13–8, and 14–9 bands has been carried out. Information on the B3Πg, ν = 13, 14, and 15, and A3Σu+, ν = 9, 10, and 11 levels is reported for the first time.